AERCO BMK 3.0 LN Nat. Gas APRIL 2009 User Manual
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APPENDIX A
A-2
APPENDIX A - BOILER MENU ITEM DESCRIPTIONS - Continued
MENU LEVEL & OPTION
DESCRIPTION
SETUP MENU
Password
Allows password to be entered.
Once the valid password (159) is entered, options in 
the Setup, Configuration and Tuning Menus can be 
modified. 
Language
Permits selection of English, Spanish or French for 
displayed messages. Default is English. 
Time
Displays time from 12:00 am to 11:59 pm.
Date
Displays dates from 01/01/00 to 12/31/99
Unit of Temp
Permits selection of temperature displays in degrees 
Fahrenheit (°F) or degrees Celsius (°C). Default is 
°F. 
Comm Address
For RS-485 communications (0 to 127). Default 
address is 0. RS-232 should have its own 
(programmable) password. 
Baud Rate
Allows communications Baud Rate to be set (2400 
to 19.2K). Default is 9600. 
Software Version
Identifies the current software version of the control 
box (Ver 0.0 to Ver 9.9). 
CONFIGURATION MENU
Internal Setpoint
Allows internal setpoint to be set . Default is 130°F.
Unit Type
Allows selection of Boiler or Water Heater.
Unit Size
Sets unit size from 0.5 to 3.0 MBTUs. Default is 1.0 
MBTU. 
Boiler Mode
It allows selection of: Constant Setpoint, Remote 
Setpoint, Direct Drive, Combination, or Outdoor 
Reset Mode. Default is Constant Setpoint Mode. 
Remote Signal
Used to set the type of external signal which will be 
used when operating in the Remote Setpoint, Direct 
Drive or Combination Mode. The factory default is 
4-20 mA/1-5V. 
Bldg Ref Temp
Allows the building reference temperature to be set 
when operating a boiler in the Outdoor Reset Mode. 
Default is 70°F.